scholarly journals Improvement of Early Strength of Cement Mortar Containing Granulated Blast Furnace Slag Using Industrial Byproducts

Materials ◽  
2017 ◽  
Vol 10 (9) ◽  
pp. 1050 ◽  
Author(s):  
Jin-Hyoung Kim ◽  
Han-Seung Lee
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Cement Mortar ◽  
Granulated Blast Furnace Slag ◽  
Industrial Byproducts ◽  
Early Strength ◽  
Furnace Slag

scholarly journals Early Strength Development of Soft Clay Stabilized by One-Part Ground Granulated Blast Furnace Slag and Fly Ash-Based Geopolymer

2021 ◽  
Vol 8 ◽  
Author(s):  
Xiyao Zheng ◽  
Jun Wu
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
Soft Clay ◽  
Strength Development ◽  
Granulated Blast Furnace Slag ◽  
Binder Ratio ◽  
Early Strength ◽  
Furnace Slag ◽  
Water Binder Ratio

One-part or “just add water” geopolymer is a cementitious material, which is friendly to environment and users in applications. However, the mechanical behavior of the soft soil stabilized by one-part geopolymer is not well acknowledged. In this study, soft clay was stabilized with ground granulated blast furnace slag (GGBFS) and fly ash (FA)-based geopolymer, which is a mixture of solid aluminosilicate precursor (Al-Si raw materials: GGBFS and FA), solid alkali activator, and water. The objective was to adopt one-part geopolymer as an alternative soil binder to completely replace ordinary Portland cement (OPC) for stabilizing the soft clay and evaluate the effect of the factors (i.e., GBFS/FA ratio in Al-Si precursor, activator/Al-Si precursor ratio, and water/binder ratio) that influenced the early strength. Results showed that the increase of the FA content in the Al-Si precursor increased the unconfined compressive strength (UCS) values significantly through the geopolymerization process. The highest UCS values were achieved with 90% GGBFS to 10% FA in the precursor when the activator/precursor and water/binder ratio is 0.15 and 0.7, respectively. The UCS values of geopolymer-stabilized clay could reach 1.5 MPa at 14 days at ambient temperature, which is much higher than that of OPC-stabilized clay. The microstructure and mineralogy analyses indicated that the prolific hydration products, such as calcium silicate hydrate (C-S-H), calcium aluminum hydrate (C-A-H), and calcium aluminum silicate hydrate (C-A-S-H), contributed greatly to strengthen the soft clay by forming the soil skeleton and infilling among clay particles, while sodium aluminosilicate (N-A-S-H) gel is only served to fill the part of porosities in the soil and cannot effectively enhance the UCS of the one-part geopolymer-stabilized soft clay. This paper results suggested that one-part GGBFS-FA–based geopolymers have the potential to replace OPC in the manufacture of stabilized soft clay.

scholarly journals Influence of alum sludge ash and ground granulated blast furnace slag on properties of cement mortar

2021 ◽  
pp. 100376
Author(s):  
Yee Leng Ng ◽  
M.A.A. Aldahdooh ◽  
Motasem Y.D. Alazaiza ◽  
Mohammed JK. Bashir ◽  
Chok Vui Soon ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Cement Mortar ◽  
Granulated Blast Furnace Slag ◽  
Alum Sludge ◽  
Sludge Ash ◽  
Furnace Slag

scholarly journals Effect of metakaolin replaced granulated blast furnace slag on fresh and early strength properties of geopolymer mortar

2018 ◽  
Vol 9 (4) ◽  
pp. 1557-1566 ◽  
Author(s):  
Ghasan F. Huseien ◽  
Jahangir Mirza ◽  
Mohammad Ismail ◽  
S.K. Ghoshal ◽  
Mohd Azreen Mohd Ariffin
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Strength Properties ◽  
Granulated Blast Furnace Slag ◽  
Early Strength ◽  
Furnace Slag
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